/*
 * Copyright (C) 2012 Google Inc.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */

package org.ros.osgi.deployment.master.internal;

import java.util.Collection;
import java.util.HashSet;
import java.util.Set;

import org.apache.felix.bundlerepository.RepositoryAdmin;
import org.ros.osgi.deployment.master.Feature;
import org.ros.osgi.deployment.master.FeatureBundleResolver;

/**
 * A very simple feature bundle resolver.
 *
 * @author Keith M. Hughes
 */
public class ObrFeatureBundleResolver implements FeatureBundleResolver {

	private RepositoryAdmin repositoryAdmin;
	
	@Override
	public Set<String> getBundles(Collection<Feature> features) {
		Set<String> bundles = new HashSet<String>();
		
		// TODO(keith): Eventually this should look inside the bundles and see what they need
		// and figure out the whole graph.
		for (Feature feature : features) {
			bundles.addAll(feature.getRootBundles());
		}
		
		return bundles;
	}

	/**
	 * @param repositoryAdmin the repositoryAdmin to set
	 */
	public void setRepositoryAdmin(RepositoryAdmin repositoryAdmin) {
		this.repositoryAdmin = repositoryAdmin;
	}

	/**
	 * @param repositoryAdmin the repositoryAdmin to set
	 */
	public void unsetRepositoryAdmin(RepositoryAdmin rrepositoryAdmin) {
		this.repositoryAdmin = null;
	}
	
}
